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Ershova AI, Fedoseev SV, Blinov SA, Ievlev MY, Lipin KV, Ershov OV. Tunable full-color emission of stilbazoles containing a 2-halo-3,4-dicyanopyridine acceptor. Org Biomol Chem 2023; 21:7935-7943. [PMID: 37740323 DOI: 10.1039/d3ob01326j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/24/2023]
Abstract
Synthesis of a series of novel push-pull stilbazole-based chromophores containing a strong 2-halocinchomeronic dinitrile acceptor is reported. The photophysical properties of the compounds are described. Strong positive solvatofluorochromism typical of intramolecular charge transfer (ICT) dyes is observed for the synthesized stilbazoles. Their tunable multicolor emission ranges from 442 nm to 710 nm and covers the whole visible spectrum.
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Affiliation(s)
- Anastasia I Ershova
- Chuvash State University named after I.N. Ulyanov, Moskovsky pr., 15, Cheboksary, Russia.
| | - Sergey V Fedoseev
- Chuvash State University named after I.N. Ulyanov, Moskovsky pr., 15, Cheboksary, Russia.
| | - Sergey A Blinov
- Chuvash State University named after I.N. Ulyanov, Moskovsky pr., 15, Cheboksary, Russia.
| | - Mikhail Yu Ievlev
- Chuvash State University named after I.N. Ulyanov, Moskovsky pr., 15, Cheboksary, Russia.
| | - Konstantin V Lipin
- Chuvash State University named after I.N. Ulyanov, Moskovsky pr., 15, Cheboksary, Russia.
| | - Oleg V Ershov
- Chuvash State University named after I.N. Ulyanov, Moskovsky pr., 15, Cheboksary, Russia.
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Ershova AI, Ievlev MY, Maksimova VN, Ershov OV. Synthesis and Optical Properties of 2-Morpholinocinchomeronic Acid Dinitrile Derivatives. RUSS J GEN CHEM+ 2022. [DOI: 10.1134/s1070363222120192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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Lipin KV, Ievlev MY, Ershova AI, Ershov OV. Dual-State Emission of 2-(Butylamino)Cinchomeronic Dinitrile Derivatives. Molecules 2022; 27:7144. [PMID: 36363971 PMCID: PMC9653811 DOI: 10.3390/molecules27217144] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 10/17/2022] [Accepted: 10/19/2022] [Indexed: 09/24/2023] Open
Abstract
New representatives of 2-(butylamino)cinchomeronic dinitrile derivatives were synthesized as promising fluorophores showing dual-state emission. To characterize the influence of the length (from methyl to butyl) and the structure (both linear and branched) of the alkyl substituent at the amino nitrogen atom, the spectral fluorescence properties of all synthesized compounds were carefully studied both in solution and in solid state. The highest photoluminescence quantum yield values of 63% were noted for solutions of 2-(butylamino)-6-phenylpyridine-3,4-dicarbonitrile in DCM and 2-(butylamino)-5-methyl-6-phenylpyridine-3,4-dicarbonitrile in toluene.
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Affiliation(s)
| | | | | | - Oleg V. Ershov
- Department of Organic and Pharmaceutical Chemistry, Chuvash State University, Moskovsky pr. 15, Cheboksary 428015, Russia
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Fan GG, Jiang BW, Sang W, Cheng H, Zhang R, Yu BY, Yuan Y, Chen C, Verpoort F. Metal-Free Synthesis of Heteroaryl Amines or Their Hydrochlorides via an External-Base-Free and Solvent-Free C-N Coupling Protocol. J Org Chem 2021; 86:14627-14639. [PMID: 34658240 DOI: 10.1021/acs.joc.1c01467] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Herein, a metal-free and solvent-free protocol was developed for the C-N coupling of heteroaryl halides and amines, which afforded numerous heteroaryl amines or their hydrochlorides without any external base. Further investigations elucidated that the basicity of amines and specific interactions derived from the X-ray crystallography analysis of 3j'·HCl played pivotal roles in the reactions. Moreover, this protocol was scalable to gram scales and applicable to drug molecules, which demonstrated its practical value for further applications.
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Affiliation(s)
- Guang-Gao Fan
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, PR China
| | - Bo-Wen Jiang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, PR China
| | - Wei Sang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, PR China
| | - Hua Cheng
- Department of Chemical Engineering and Food Science, Hubei University of Arts and Science, 296 Longzhong Road, Xiangyang 441053, PR China
| | - Rui Zhang
- Department of Chemical Engineering and Food Science, Hubei University of Arts and Science, 296 Longzhong Road, Xiangyang 441053, PR China
| | - Bao-Yi Yu
- Key Laboratory of Urban Agriculture (North China), Ministry of Agriculture, Beijing University of Agriculture, Beinong Road 7, Beijing 102206, PR China
| | - Ye Yuan
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, PR China
| | - Cheng Chen
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, PR China
| | - Francis Verpoort
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, PR China.,National Research Tomsk Polytechnic University, Lenin Avenue 30, Tomsk 634050, Russian Federation.,Ghent University Global Campus, 119 Songdomunhwa-Ro, Yeonsu-Gu, Incheon 21985, Korea
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Fedoseev SV, Ershova AI, Lipin KV, Mel’nik EA, Ershov OV. Reaction of 2-Chloropyridine-3,4-dicarbonitrile with Anilines. Synthesis of 2-(Arylamino)pyridine-3,4-dicarbonitriles. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2021. [DOI: 10.1134/s1070428021080170] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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